1. Every child has the same growing up experience.
This is a good sentence. I don't think it is true, but it is grammatical. I would say the opposite: All children have different growing up experiences.
In these sentences, the noun phrase "growing up" is used as an adjective. It is legitimate to do that.
2. This is grammatical. Perhaps it would be better to say "from those of others".
3. "experiences" needs to be plural.
4. correct
5. This doesn't make sense. Perhaps you meant to say "may have been experienced by others as well".